So here's the problem:
A small pastry company is trying to determine the optimal number of products to make in a given week. The company's three most popular products and Chocolate Muffins, Eclairs, and Blueberry Scones. Each product requires preparation, baking, and packaging time. Each of the previously mentioned departments operates at a maximum of 380, 330, and 120 labor-hours per week respectively.

Chocolate Muffins

Eclairs

Blue Berry Scones

Rreparation

0.5hr

1.0hr

1.5hr

Baking

0.6hr

0.9hr

1.2hr

Packaging

0.2hr

0.3hr

0.5hr

A) Determine a system of equations, represent in matrix form, that would maximize company production.

[.5 .6 .2 380]
[1.0 .9 .3 330]
[1.5 1.2 .5 120]

B) Reduce the matrix from A to determine the optimal number of each product to be produced in a given week.

[1 0 0 -960 ]
[0 1 0 1966.66]
[0 0 1 -1600 ]

So I clearly went wrong somewhere but I'm not sure where or what to do.

Apr 1st 2012, 11:45 PM

Prove It

Re: Methods and Matrices.

Quote:

Originally Posted by TimK

So here's the problem:
A small pastry company is trying to determine the optimal number of products to make in a given week. The company's three most popular products and Chocolate Muffins, Eclairs, and Blueberry Scones. Each product requires preparation, baking, and packaging time. Each of the previously mentioned departments operates at a maximum of 380, 330, and 120 labor-hours per week respectively.

Chocolate Muffins

Eclairs

Blue Berry Scones

Rreparation

0.5hr

1.0hr

1.5hr

Baking

0.6hr

0.9hr

1.2hr

Packaging

0.2hr

0.3hr

0.5hr

A) Determine a system of equations, represent in matrix form, that would maximize company production.

[.5 .6 .2 380]
[1.0 .9 .3 330]
[1.5 1.2 .5 120]

B) Reduce the matrix from A to determine the optimal number of each product to be produced in a given week.

[1 0 0 -960 ]
[0 1 0 1966.66]
[0 0 1 -1600 ]

So I clearly went wrong somewhere but I'm not sure where or what to do.

For starters, you haven't written matrix equations. You should actually have written